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| Abstract No.: |
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Scheduled at:
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Wednesday, May 11, 2016, Room 3E 11:00 AM
Cold Gas Spraying III
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| Title: |
Study of the properties of cold sprayed In718 deposits
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| Authors: |
Renzhong Huang* / Guangdong Institute of New Materials, P.R. China
Hirotaka Fukanuma / Plasma Giken Co., Ltd., Japan
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| Abstract: |
Inconel 718 alloy is a precipitation hardenable, nickel-based superalloy which has decent corrosion resistance, high strength at ambient temperature, and excellent creep and fatigue strengths at high temperature. Thus the alloy has been used for avariety o fapplications such as gas turbines, jet engines, steam generators, and fission and fusion reactor structures. The deposition of pore-free and excellent machnical properties Ni superalloys coatings is of great interest for engines design and gas turbine applications, both in case of Maintenance Repair and Overhaul operations as well for mechanical and chemical protection purposes in aeronautics and energy applications. In this investigation, Inconel 718 was deposited by cold spray process with nitrogen and helium gas. The particle velocities were maseured experimentally and the splats of Inconel 718 were observed. The mechanical properties of cold-sprayed In718 deposits inclueding hardness, bonding strength and tensile strength were also investigated. The results showed that the deposits sprayed with helium gas had a little better mechanical properties than the ones deposited with nitrogen gas. Still the deposits prepared by nitrogen gas illustrated excellent mechanical properties simiar to the properties of In718 itself.
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